please prove this sum
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
sin^2A-cos^2A/sin^2A×cos^2a
sin^2A-(1-sin^2A)/sin^2A×cos^2A
sin^2A-1+sin^2A/sin^2A×cos^2A
2sin^2A-1/sin^2A×cos^2A
=RHS. proved